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Finding the Fourth Proportional to 192,031.40, 287,804.10 and 73,544.60

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Solution

The fourth proportional to 192,031.40, 287,804.10 and 73,544.60 is: 110,223.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    192,031.40 : 287,804.10 = 73,544.60 : x
  2. Step 2: Convert to fraction form
    192,031.40/287,804.10 = 73,544.60/x
  3. Step 3: Cross multiply
    192,031.40x = 287,804.10 × 73,544.60
  4. Step 4: Simplify right side
    192,031.40x = 21,166,437,412.86
  5. Step 5: Solve for x
    x = 21,166,437,412.86/192,031.40
  6. Step 6: Final answer
    x = 110,223.84

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.